Gamma radiation-polymerized Zn(II) methacrylate as a sorbent for removal of Pb(II) ions from wastewater
Gamma radiation-polymerized Zn(II) methacrylate as a sorbent for removal of Pb(II) ions from wastewater
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DOI：
10.1021/ie0612111
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发表时间：
2007-04
影响因子：
4.2
通讯作者：
F. Ureña-nuñez;C. Barrera-Díaz;B. Bilyeu
中科院分区：
文献类型：
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作者：
F. Ureña-nuñez;C. Barrera-Díaz;B. Bilyeu
在本工作中，通过γ辐射合成了聚甲基丙烯酸锌(Zn(II)PMA)，并对其作为铅离子吸收剂的性能进行了评价。将该聚合物粉末与铅(II)水溶液混合，测定其对水中重金属离子的去除能力。铅(II)的去除是通过朗缪尔型吸附机理进行的；铅(II)的去除是聚合物与溶液接触时间的函数。当初始浓度为25 mg L~(-1)时，液相中的铅浓度降低了94%。用扫描电子显微镜、能量色散分析、电子顺磁共振、X射线衍射、傅里叶变换红外光谱和X射线光电子能谱对聚合物进行了表征。用锌(II)-聚甲基丙烯酸甲酯处理含重金属废水是一种新颖的处理方法，是一种简单、有效、经济的废水处理方法。
In this work, Zn(II) polymethacrylate (Zn(II)PMA) is synthesized by γ irradiation of the corresponding monomer and evaluated for use as a lead ion absorbent. The polymer powder was mixed with Pb(II) aqueous solutions to determine its capacity at removing the heavy metal ion from water. The Pb(II) removal occurs via a Langmuir-type adsorption mechanism; the Pb(II) removal was found to be a function of the contact time between the polymer and the solution. A decrease of 94% of Pb(II) concentration in the liquid phase was achieved when an initial Pb(II) concentration was 25 mg L-1. The polymer was characterized using scanning electron microscopy, energy dispersion analysis, electron paramagnetic resonance, X-ray diffraction, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The use of Zn(II)PMA for the treatment of wastewater containing heavy metals is an innovative method that constitutes a simple, effective, and economical mean for wastewater treatment.